Raman study of the Hg0.7Cr0.3Sr2CuO4+δ superconductors

Soo Young Lee; Bo Youn Chang; In Sang Yang; Ji Hye Gwak; Sung Jin Kim; Jae Hyuk Choi; Sung Ik Lee; J. V. Yakhmi; J. B. Mandal; B. Bandyopadhyay; B. Ghosh

doi:10.1016/S0921-4534(97)00607-2

Raman study of the Hg_0.7Cr_0.3Sr₂CuO_4+δ superconductors

Soo Young Lee, Bo Youn Chang, In Sang Yang, Ji Hye Gwak, Sung Jin Kim, Jae Hyuk Choi, Sung Ik Lee, J. V. Yakhmi, J. B. Mandal, B. Bandyopadhyay, B. Ghosh

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4 Scopus citations

Abstract

The local environment of the apical oxygens (O_A) in the Sr-substituted mercury-based superconductor Hg_0.7Cr_0.3Sr₂CuCuO_4+δ is investigated using Raman spectroscopy. Raman spectra from the Sr-substituted Hg-1201 samples show broad O_A A_1g double peaks at 553 and 583 cm^-1, which are 10 -20 cm^-1 lower than the pristine Hg-1201. The existence of, and lower shift of, the double peaks in the Raman spectra of the Sr-substituted Hg-1201 superconductors indicate changes in the environment of O_A in the Sr-substituted mercury-based superconductors.

Original language	English
Pages (from-to)	1039-1040
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	282-287
Issue number	PART 2
DOIs	https://doi.org/10.1016/S0921-4534(97)00607-2
State	Published - Aug 1997

Bibliographical note

Funding Information:
ACKNOWLEDEMENTS: This work was supported by the fund BSRI-96-2428 from the Ministry of Education, and the fund # 961-0207-044-2 from Korea Science & Engineering Foundation.

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10.1016/S0921-4534(97)00607-2

Cite this

@article{f993116deca5493f957d9aff2f93e10a,

title = "Raman study of the Hg0.7Cr0.3Sr2CuO4+δ superconductors",

abstract = "The local environment of the apical oxygens (OA) in the Sr-substituted mercury-based superconductor Hg0.7Cr0.3Sr2CuCuO4+δ is investigated using Raman spectroscopy. Raman spectra from the Sr-substituted Hg-1201 samples show broad OA A1g double peaks at 553 and 583 cm-1, which are 10 -20 cm-1 lower than the pristine Hg-1201. The existence of, and lower shift of, the double peaks in the Raman spectra of the Sr-substituted Hg-1201 superconductors indicate changes in the environment of OA in the Sr-substituted mercury-based superconductors.",

author = "Lee, {Soo Young} and Chang, {Bo Youn} and Yang, {In Sang} and Gwak, {Ji Hye} and Kim, {Sung Jin} and Choi, {Jae Hyuk} and Lee, {Sung Ik} and Yakhmi, {J. V.} and Mandal, {J. B.} and B. Bandyopadhyay and B. Ghosh",

note = "Funding Information: ACKNOWLEDEMENTS: This work was supported by the fund BSRI-96-2428 from the Ministry of Education, and the fund # 961-0207-044-2 from Korea Science & Engineering Foundation.",

year = "1997",

month = aug,

doi = "10.1016/S0921-4534(97)00607-2",

language = "English",

volume = "282-287",

pages = "1039--1040",

journal = "Physica C: Superconductivity and its Applications",

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T1 - Raman study of the Hg0.7Cr0.3Sr2CuO4+δ superconductors

AU - Lee, Soo Young

AU - Chang, Bo Youn

AU - Yang, In Sang

AU - Gwak, Ji Hye

AU - Kim, Sung Jin

AU - Choi, Jae Hyuk

AU - Lee, Sung Ik

AU - Yakhmi, J. V.

AU - Mandal, J. B.

AU - Bandyopadhyay, B.

AU - Ghosh, B.

N1 - Funding Information: ACKNOWLEDEMENTS: This work was supported by the fund BSRI-96-2428 from the Ministry of Education, and the fund # 961-0207-044-2 from Korea Science & Engineering Foundation.

PY - 1997/8

Y1 - 1997/8

N2 - The local environment of the apical oxygens (OA) in the Sr-substituted mercury-based superconductor Hg0.7Cr0.3Sr2CuCuO4+δ is investigated using Raman spectroscopy. Raman spectra from the Sr-substituted Hg-1201 samples show broad OA A1g double peaks at 553 and 583 cm-1, which are 10 -20 cm-1 lower than the pristine Hg-1201. The existence of, and lower shift of, the double peaks in the Raman spectra of the Sr-substituted Hg-1201 superconductors indicate changes in the environment of OA in the Sr-substituted mercury-based superconductors.

AB - The local environment of the apical oxygens (OA) in the Sr-substituted mercury-based superconductor Hg0.7Cr0.3Sr2CuCuO4+δ is investigated using Raman spectroscopy. Raman spectra from the Sr-substituted Hg-1201 samples show broad OA A1g double peaks at 553 and 583 cm-1, which are 10 -20 cm-1 lower than the pristine Hg-1201. The existence of, and lower shift of, the double peaks in the Raman spectra of the Sr-substituted Hg-1201 superconductors indicate changes in the environment of OA in the Sr-substituted mercury-based superconductors.

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U2 - 10.1016/S0921-4534(97)00607-2

DO - 10.1016/S0921-4534(97)00607-2

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